More info:
The two systems in question have the following specs:
System 1 ("murray"):
Tyan Transport B2891G24S4H
Motherboard: Thunder K8SRE S2891 (nForce Professional 2200)
8x1GB of Corsair CM72SD1024RLP-3200/S (S = Samsung)
Disks: root fs on two WD3200RE using linux raid1, SATA
System 2 ("morgan"):
Tyan Transport B2891G24S4H
Motherboard: Thunder K8SRE S2891 (nForce Professional 2200)
4x1GB of Corsair CM72SD1024RLP-3200/S
4x1GB of Corsair CM72SD1024RLP-3200/M (M = Micron)
Disks: root fs on a WD740GD, /home on a WD3000, /data on a WD2500, all SATA
morgan's issues appear to have been fixed simply by using iommu=soft.
murray still experiences corruption. I've now tested it in the
following ways:
Running 2.6.15-28 amd64 SMP:
with and without iommu=soft
with and without mem=1g
with and without iommu and memhole disabled in BIOS
Running 2.6.22 amd64 SMP:
with and without iommu=soft
Running 2.6.22 amd64 uni processor:
with and without iommu=soft
No luck yet.
--
opteron amd64 data corruption
https://bugs.launchpad.net/bugs/129260
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